Education
Manosalvas played for the New York Red Bulls Academy since 2009. In 2009 he was a member of the U-18 squad and was named Academy Player of the Year. Manosalvas also played college soccer for Seton Hall University from 2010 to 2014.
While with the Pirates he played in 59 matches scoring 7 goals and recording 10 assists.
During the 2014 season Manosalvas played for the New York Red Bulls U-23 in the National Premier Soccer League. He helped lead the team in capturing the 2014 NPSL title and was recognized as the league player of the year and top scorer.